As it happens, I’m in the process of transcribing most of MacD’s theological work to the forum–I try to post an entry every day. His sermon on “Justice” is in Vol 3; I’m in the middle of transcribing the second sermon from vol 2.
To be more specific: MacD doesn’t repudiate the idea of a sinless person volunteering to be punished for a guilty person as reprehensible; on the contrary, he allows that such a person would be admirable even to worshipfulness.
Nor does he ‘not believe in the atonement’. He believes wholeheartedly in the atonement. He rejects, in that sermon, one particular theory about what the atonement means. Though he ironically points out that he can explain this distinction all day long and people will still go away saying that “he doesn’t believe in the atonement!”
And what he considers reprehensible is not that a sinless person should volunteer to be punished for a guilty person, but that an authority would accept the mere suffering of anyone, much moreso a person innocent of any wrongdoing, as a fulfillment of ‘justice’–while letting the guilty person go free, no less!
I’m not at the office now, so I’m a little handicapped in copy-pasting the relevant quotes from that sermon at the moment. But yes, GMacD thinks the cross matters; and (speaking as one of his chief exponents on this site) so do I. I think it matters so fundamentally that, paradoxically, I’m often unsure where to begin in talking about its importance!
Roughly in order of what I take to be ascending importance:
1.) as a simple visual symbol, its ability to appeal and communicate ideas is nearly unmatched.
2.) despite what a few European hyper-sceptics (wish? try to?) believe, the cross anchors our religion firmly in history. Someone who rejects the supernatural, or who doesn’t believe God would do something like raise a person (especially Jesus of Nazareth) from the dead, is going to understandably have a lot of trouble believing in the empty tomb. (We’d certainly have a lot of trouble trying to use that as a symbol for our religion!) But even most of the staunchest non-or-anti-Christians in the world can believe in the cross.
3.) again, despite those few aforementioned hyper-sceptics (who don’t even believe Jesus existed at all, and who think the historical claims of Christianity were invented sometime in the mid-2nd century on top of a purely mystical non-historical religion preceding it), the cross isn’t something that would have been very likely to have been invented (even as a purely mystical non-historical symbol!) in the middle of a Roman Empire that crucified rebels against the Empire and which was already willing to do that to Christians for following Jesus in preference to the Emperor. Similarly, whenever I see slightly-less-hyper sceptics trying to claim that Christians invented the tomb burial (and Joseph of Arimathea) in order to avoid the scandal of Jesus having been buried with common criminals in a shallow grave to be eaten by scavengers, I really just have to laugh–it’s like those people have no idea that the cross itself (with Jesus being “reckoned with the transgressors”) was already significantly more scandalous than an unclean and dishonored burial would ever be!
So far I’ve only been talking about historical importances. The mention of being reckoned with transgressors introduces religious importances. So:
4.) Jesus shows on the cross, just as clearly as anyone could want, that God is willing to accept and reward actions with good intentions, even if those actions seem far too puny for the comfort of people who are primarily interested in Christianity-ity. The thief (or rebel brigand) on the cross asks only that Jesus will remember him when Jesus comes into His kingdom. He doesn’t even call Jesus ‘Lord’. There’s a good chance, based on harmonization of sources, that the brigand was only trying to humor a man he thought was crazy–but a harmless crazy who didn’t deserve to be there, unlike himself. He gives all of the little he is able; Jesus gives all that He can give in return. (The result being that today theologians and hymn-writers and preachers are in the habit of trying to imagine that the rebel really had a sufficiently detailed “saving faith”! Feh. The rebel didn’t even ask to be saved; he only asked that Jesus would remember him kindly.)
5.) “Father, forgive them–FOR THEY DO NOT KNOW WHAT THEY DO!” Jesus readily excuses, just like He promised He would, those who comit the worst imaginable blasphemies against Him, thinking they are doing what should be rightly done.
6.) the cross shows that God (Father, Son and Holy Spirit) is willing to go the furtherest distance, beyond all human expectation, to reach and save His own enemies. (You may have noticed a thread or two detailing how the words we translate “propitiate” and “atone/reconcile”, and cognates, are actually used in the NT. It’s always about God acting to save us, and even to incline us to smile upon Him. It’s never about God having to be atoned or even propitiated. In a total reversal of usual expectations outside Christianity, it’s always about God atoning and even propitiating us.)
7.) the cross shows that God sacrifices Himself (as the Son) for our sake. (And not only as the Son; where one Person is in operation, all Persons are in operation. The Son shows us the Father and does only what He sees the Father doing.)
8.) the cross shows us what happens when we sin against God: in effect we murder God. But it also shows that this doesn’t happen to God unwillingly or by surprise, or even by any power of our own. God submits to that passion voluntarily, for our sakes; and not only voluntarily, but authoritatively. “I have authority to set down My life, and I have authority to take it up again. No one takes My life from Me; I give it freely!”
9.) the cross shows us that God comes to us, not to be served, but to serve. It shows us that our natural expectations of authority are actually backward: we naturally expect, as an inference from natural behavior, that the highest authority is the authority to be served. But God shows us that the highest authority is the authority to serve. (God has the authority to be served, too, but that isn’t even His own highest authority. The reason why it sounds so horribly daring to suggest that we actually have authority from God to be served by God, is because we naturally expect being served to be the highest authority. But it isn’t. It’s the lesser authority.)
10.) by the cross, God testifies to us that He, even He Himself, voluntarily suffers along with the innocent when they are unjustly treated.
11.) by the cross, God testifies to us that He, even He Himself, voluntarily suffers along with the guilty, when they are justly punished!
12.) by the cross, God demonstrates and enacts the humility of His own true character.
13.) by the cross, God enacts in history, where it can be seen and testified to ever afterward as such a truth, the eternal self-sacrifice of His own action (the Son, the second Person of God, ever-begotten by the Father, the Lamb upon the throne) for the sake of all creation, the whole ‘kosmos’. For the Lamb is sacrificed from the beginning of all created reality, as the very ground of our existence.
14.) by the cross, God enacts in history, where it can be seen and testified to ever afterward as such a truth, the eternal self-sacrifice of the Son for the sake of the Father, as the very self-existence of the Godhead, upon which all reality depends for existence.
15.) by the cross, God enacts in history, where it can be seen and testified to ever afterward as such a truth, the eternal faithfulness of the Father to all of creation, including to the Son. (As I have noted previously often before, the Son quotes a Psalm where the whole point is that God is actually expected to have not abandoned the one who is suffering.)
16.) by the cross, God shows that He shares in the disciplining of His creation so that we may trust Him and His intentions toward us.
17.) by the cross, God shows both His concern for even our flesh, and also the lordship of the Spirit over the flesh.
18.) by the cross, God once and for all demonstrates that no temptation, no rebellion, will induce God to act to fulfill un-righteousness, to fulfill non-fair-togetherness: for the Son does not rebel against the Father and the Father does not abandon the Son.
19.) by the cross, even a demon has a chance of seeing and learning: if you finally succeed in killing God, and you still don’t win, you might as well give up and come home!!!
20.) by the cross, as by the symbol of baptism, God demonstrates the resolve of His heart to send away sin, and to fulfill all righteousness!!!
He shall never give up; He shall go the farthest distance in love; so that all things–all things I say, whether in the heavens or in the earth–shall be reconciled to Him!!!
He shall draw us all to Himself, by being lifted up for our sake–on the cross!
(For there is none that may come to Him except those whom the Father has given to Him; and the Father has given all things into His hand.)
It is possible that some other things may occur to me, also worth mentioning. The cross enacts and signifies a lot of unspeakably important things.
(PS: please note that, when I discuss the religious importance of the cross, I usually talk about two things at once: what God eternally does, and is; and the enaction of this on the cross. God’s sacrifice there is unique because of Who and What He uniquely is. He does not do something there that is uniquely new in itself; despite what many theologians have thought afterward. What is uniquely new is that we ourselves can see it, whereas normally it is hidden from our sight. Thus even decades afterward, John the Evangelist can write in the present tense of our seeing what the Son reveals in the triumph of the cross.)